Sometimes tool-designers must design complicated profile milling cutters to complete a machining task (see above sketch, 5.)
If a profile is no more 10 mm (0.3937 inches) deep, some designers make this cut using just one milling cutter (1), rather than dividing the step for separate cutters.
In this case, to make one cutter more economically, we invested less in materials, time, and money .
To produce and machine work-details and orientation cutters relative to the work (5) in the fixture 2, always use a set block (3) and fillers (4), with thickness (a.)
In calculation, to use the dimension of work M1, M2, M3 of the cutter, M4 = M1 - M3, M4-a is the distance from pin 6 to set block.